
* {
    margin: 0;
    padding: 0;
}

html, body {
    width: 100%;
    height: 100%;
}

body {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
}

#id-canvas {
    border: solid 1px black;
}

header {
    position: absolute;
    top: 20px;
    font-size: 50px;
}

footer {
    position: absolute;
    bottom: 20px;
    font-size: 20px;
}